<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        #gy{ color: green}
        .c1{ color: yellow}
        body>p,input[type='text']{ background-color: red}
        body>div>div>p{ color: pink}
        body div div p{ background-color: yellow}
        a:link{ color: green}
        a:visited{ color: red}
        a:hover{ color: yellow}
        a:active{ color: pink}
    </style>
</head>
<body>
    <ul>
        <li>刘备</li>
        <li id="gy">关羽</li>
        <li class="c1">张飞</li>
    </ul>
    <p>香蕉</p>
    <p class="c1">苹果</p>
    <input type="text">
    <input type="password">
    <div>
        <p>p1</p>
        <div>
            <p>p2</p>
        </div>
        <div>
            <div>
                <p>p3</p>
            </div>
        </div>
    </div>
    <a href="http://www.tmooc.cn">达内</a>
</body>
</html>